Squats…..again and again and again

I feel a bit like I’m experiencing groundhog day. I’ve been battling with 65-75lbs, sets of 5 squats, for weeks now, months in fact. I can do it one week, can’t do it the next. I think the solution is to go back, again, to 65lbs and just increase the workload, decrease the time between sets, and work from there….otherwise, I’m just going to stay frustrated and not move forward with my squat training.